What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Tempstar equipment which lists the model number T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

Is this contactor compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar Contactor for T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today

Name: Tempstar Contactor for T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today
Brand: Tempstar
SKU: 1172472-GEN
Price: 26.95 USD
Availability: InStock

SKU: 1172472-GEN Brand: Tempstar

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Overview

This OEM single-pole contactor (part number 1172472) is the electrical switch that energizes the compressor and condenser fan motor in your Tempstar T2A342GKD100 air conditioning unit. Rated at 30 amps with a 24-volt control coil and an integrated shunt, it closes when the thermostat calls for cooling and opens when the call ends. Contactors are one of the most common HVAC failure points: the contact points pit, arc, and corrode over thousands of switching cycles. When a contactor fails, the outdoor unit may hum without starting, chatter rapidly, fail to shut off, or stop running entirely. Replacing a worn contactor restores reliable starts and protects the more expensive compressor from damaging voltage conditions.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Single-Pole (1-Pole) Contactor with Shunt
Brand	Tempstar (ICP / Heil)
Contact Rating	30 Amps
Coil Voltage	24V
Poles	1
Fits Model	T2A342GKD100

Compatibility

Engineered as a direct-fit OEM replacement for the Tempstar T2A342GKD100 condensing unit. This contactor is also used across many ICP-family residential condensers and heat pumps (Tempstar, Heil, Comfortmaker, Arcoaire) that specify part 1172472. Always confirm your existing contactor's amperage, pole count, and 24V coil before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter before touching any terminals.
Access — Remove the condenser service panel to expose the control box.
Document — Take a clear photo of every wire and terminal position before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from the mounting bracket.
Install — Mount the new contactor, transfer each wire to the matching terminal per your photo, and confirm tight connections.
Test — Restore power and verify the contactor pulls in on a cooling call and the compressor and fan start cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor will not start.
Visible pitting, burning, or melted plastic on the contact points.
The contactor chatters or rapidly clicks during a cooling call.
The condenser fails to shut off because the contacts have welded closed.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

Tempstar Contactor for T2A342GKD...

$26.95

Frequently Asked Questions

Does this Contactor fit my Tempstar T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the contactor on my Tempstar T2A342GKD100 — 1-Pole 30A 24V Coil w/Shunt | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor compatible with Bryant or Payne too?

Many Tempstar parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Tempstar contactor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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